An error logging method for a coating plant is disclosed. The error logging method generally includes capturing an error during running of process data records for the coating plant, wherein the individual process data records are ordered according to the given time of operation of the coating plant and each of which contain various process data of the coating plant. The method may further include storage of the captured process data records, detection of a possible error condition of the coating plant, and/or production of an error code when detection of an error condition of the coating plant occurs. The various examples may also relate to storage of the error code in chronological order with the stored process data records.